OPTION FUNCTION SALE METHOD OF DIGITAL EQUIPMENT AND OPTION FUNCTION SALE SYSTEM THEREOF

摘要

PROBLEM TO BE SOLVED: To provide an option function sale method of digital equipment and an option function sale system thereof which is small in burden on maker and can make a digital equipment immediately used as equipment adding an option function even when the equipment is not taken over for a client. ;SOLUTION: The digital equipment 1 (for instance, an up-converter converting a digital component signal into HDTV) previously mounting a full option function is sold to a user C through a factory A (maker) and a sale shop B (sale corporation and agency), when the user needs some option (version up), a package 2 (built-in manual with authentication code for starting the option) sold from the factory A through the sale shop B is purchased, a license key ki obtained by transmitting the authentication code to a server which the maker indicates is input to the digital equipment 1 to be operated as a version up machine.;COPYRIGHT: (C)2003,JPO